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ByteRange.cs
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ByteRange.cs
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//----------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------
namespace Microsoft.Http.Headers
{
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Globalization;
using System.Linq;
using System.Text;
public class ByteRange
{
public ByteRange(int from, int to)
{
this.Begin = from;
this.End = to;
}
public ByteRange(int range)
{
this.Begin = range;
}
public int Begin
{
get;
set;
}
public int? End
{
get;
set;
}
public static ByteRange Parse(string value)
{
ByteRange br;
string r = value.Trim();
int minus = r.IndexOf('-');
if (minus == -1 || minus == 0)
{
br = new ByteRange(ParseInt32(r));
}
else
{
var from = ParseInt32(r.Substring(0, minus));
var to = ParseInt32(r.Substring(minus + 1));
br = new ByteRange(from, to);
}
return br;
}
private static int ParseInt32(string r)
{
return int.Parse(r, CultureInfo.InvariantCulture);
}
public override string ToString()
{
if (this.End == null)
{
return this.Begin.ToStringInvariant();
}
return this.Begin + "-" + this.End;
}
}
}